Very slow for system operations, good enough for storing photos and video. Small files random write speed mater and not every SD card can handle this:
Your SD:
random random
kB reclen write rewrite read reread read write
102400 4 751 720 7118 7114 6195 724
102400 16 7028 7701 9874 10425 9888 62
Samsung EVO32
102400 4 2886 3256 7620 7627 7625 3419
102400 16 9870 10306 14685 14672 14687 9314
Do the math. If you compare those numbers further to some SSD drive, things looks even more bizarre.
If you want to understand more about this issue, read this topic: https://forum.armbian.com/index.php?/topic/954-sd-card-performance
Get proper SD card or use some workaround - freeze kernel packages that it won't upgrade since your SD card is not ready for small files manipulation in decent time. Upgrade is stress for system and you need to have solid SD card to make hassle free upgrades.